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Closed loop analysis method and system for USB high speed signal

A high-speed signal and analysis method technology, applied in the field of signal transmission, which can solve problems such as simulation and test separation

Inactive Publication Date: 2018-03-23
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a closed-loop analysis method and system for USB high-speed signals, aiming to solve the situation that simulation and test are separated in traditional USB analysis, improve the effectiveness of USB signal analysis, and be more intuitive

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  • Closed loop analysis method and system for USB high speed signal
  • Closed loop analysis method and system for USB high speed signal
  • Closed loop analysis method and system for USB high speed signal

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Embodiment Construction

[0029] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily lim...

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Abstract

The invention provides a closed loop analysis method and system for a USB high speed signal. The closed loop analysis method includes: establishing a USB signal test frame, using a USB signal test tool to perform test according to the test frame, acquiring an actual measurement eye diagram; acquiring a USB signal topological structure, and acquiring a simulation eye diagram according to the USB signal topological structure; comparing if the actual measurement eye diagram and the simulation eye diagram coincide with each other or not, and showing that a transmission device may meet the speed demand of a USB 3.2 if so; otherwire, showing that the transmission device cannot meet the speed demand of the USB 3.2. According to the method, simulation and test are performed on a USB 3.2 high speedsignal, simulation and actual test are combined, a closed loop is formed, and then the situation that in the conventional USB analysis, simulation and test are separated from each other can be avoided; combination between simulation and actual test can effectively perform USB signal analysis, and can verify if the transmission device can meet the speed demand of the USB 3.2 or not; and analysis and comparison are performed in an eye diagram format, and a visual effect can be achieved.

Description

technical field [0001] The invention relates to the field of signal transmission, in particular to a closed-loop analysis method and system for USB high-speed signals. Background technique [0002] As the USB Alliance composed of technology companies such as Apple, HP, Intel and Microsoft announced the USB3.2 standard to replace the current USB3.1 standard, and according to the published details, the USB Type-C cable already supports Multi-channel operation. After upgrading from USB3.1 to USB3.2 standard, the host device and peripheral devices can adopt a multi-channel solution, that is, support two channels with a transmission speed of 5Gb / s or 10Gb / s. Since it supports two channels of 10Gb / s transmission speed, compared with the current USB-C cable, the transmission rate of USB3.2 will be doubled, and due to the use of SuperSpeed ​​USB layer data rate and encoding technology, a single channel can be achieved and seamless transition between dual-channel operation. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/22
CPCG06F11/221
Inventor 刘法志
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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